In the most recent versions of RouterOS (6.34.6 and 6.35.4), if you add the ethernet port you are plugged into, to a bridge, it disconnects you from the router.
Could we revert back to the way this used to behave in older versions (e.g. 6.32.4 didn’t have this problem). It causes a lot of problems for our installers who program our customer routers using a script.
I assume you are connecting to MAC address. In this case you are disconnected only if bridge mac address is not the same as Ethernet MAC and such behaviour was on any ROS version.
However I do see what you are saying by the MAC Address of what i’m connected to changes because I’m now using the MAC of the bridge
But for some reason, it never used to disconnect you until these recent versions…
That is where i get disconnected
(and yes, that bridge already has the MAC Address from ether1, because I had just removed all ports from that bridge, to use in this example)
On 6.32.4
[admin@MikroTik] > /interface ethernet print
Flags: X - disabled, R - running, S - slave
# NAME MTU MAC-ADDRESS ARP MASTER-PORT SWITCH
0 ether1 1500 D4:CA:6D:AE:D3:E5 enabled none switch1
1 ether2 1500 D4:CA:6D:AE:D3:E6 enabled none switch1
2 ether3 1500 D4:CA:6D:AE:D3:E7 enabled none switch1
3 ether4 1500 D4:CA:6D:AE:D3:E8 enabled none switch1
4 R ether5 1500 D4:CA:6D:AE:D3:E9 enabled none switch1
5 ether6 1500 D4:CA:6D:AE:D3:EA enabled none switch2
6 ether7 1500 D4:CA:6D:AE:D3:EB enabled none switch2
7 ether8 1500 D4:CA:6D:AE:D3:EC enabled none switch2
8 ether9 1500 D4:CA:6D:AE:D3:ED enabled none switch2
9 ether10 1500 D4:CA:6D:AE:D3:EE enabled none switch2
10 sfp1 1500 D4:CA:6D:AE:D3:E4 enabled none switch1
[admin@MikroTik] > /interface bridge print
Flags: X - disabled, R - running
0 R name="bridge1" mtu=auto actual-mtu=1500 l2mtu=65535 arp=enabled mac-address=00:00:00:00:00:00 protocol-mode=rstp
priority=0x8000 auto-mac=yes admin-mac=00:00:00:00:00:00 max-message-age=20s forward-delay=15s transmit-hold-count=6
ageing-time=5m
[admin@MikroTik] > for i from=1 to=10 do={/interface bridge port add bridge=bridge1 interface="ether$i"}
[admin@MikroTik] > /interface ethernet print
Flags: X - disabled, R - running, S - slave
# NAME MTU MAC-ADDRESS ARP MASTER-PORT SWITCH
0 S ether1 1500 D4:CA:6D:AE:D3:E5 enabled none switch1
1 S ether2 1500 D4:CA:6D:AE:D3:E6 enabled none switch1
2 S ether3 1500 D4:CA:6D:AE:D3:E7 enabled none switch1
3 S ether4 1500 D4:CA:6D:AE:D3:E8 enabled none switch1
4 RS ether5 1500 D4:CA:6D:AE:D3:E9 enabled none switch1
5 S ether6 1500 D4:CA:6D:AE:D3:EA enabled none switch2
6 S ether7 1500 D4:CA:6D:AE:D3:EB enabled none switch2
7 S ether8 1500 D4:CA:6D:AE:D3:EC enabled none switch2
8 S ether9 1500 D4:CA:6D:AE:D3:ED enabled none switch2
9 S ether10 1500 D4:CA:6D:AE:D3:EE enabled none switch2
10 sfp1 1500 D4:CA:6D:AE:D3:E4 enabled none switch1
[admin@MikroTik] > /interface bridge print
Flags: X - disabled, R - running
0 R name="bridge1" mtu=auto actual-mtu=1500 l2mtu=1598 arp=enabled mac-address=D4:CA:6D:AE:D3:E5 protocol-mode=rstp
priority=0x8000 auto-mac=yes admin-mac=00:00:00:00:00:00 max-message-age=20s forward-delay=15s transmit-hold-count=6
ageing-time=5m
I can do all that without getting disconnected from the router at all, and you can see that I am plugged into ether5, and the mac address of the bridge chooses the MAC for ether1 as the MAC for the bridge. So the MAC Address I’m connected to via MAC-Telnet did change. But for some reason, all RouterOS versions up to 6.32.4 do not disconnect you when doing so.
Actually i do remember one other odd version (6.31.x I believe that disconnected you too, but that was soon corrected in the 6.32.x versions)
What changed that no longer allows you to stay connected after adding that port? And can that change be reverted in future RouterOS versions?